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TURBO AUTO NB
24 Attachment(s)
Hey Guys thought id share my progress and just to show something different
My MX5 1998 NB BC coilovers strut braces front and rear T2 diff with 3.63 gears and braced arms manualised steering rack Engine 1.8 GT2871R Manley rods wiseco pistons ARP everything ACL race bearing BE pump supermiata balancer ported head +1mm os supertech valves kelford cam supertech valve springs and retainers begi inlet manifold with mustang throttle 1000cc ID injectors supermiata fuel rail adjustable cam gears AVO manifold ported and port matched 500X270 intercooler 3"fabricated dump 3"exhaust system GEARBOX built and manualised Jatco L4n71B from early NA with 2800 stall and billet input and larger billet output shafts B&M ratchet shifter hidden under console in drop box auto cooler hidden in the front bar made 299.5 last time was tuned on 25psi on a hub dyno https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 https://www.miataturbo.net/attachmen...ine=1463185331 |
What turbo?
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Originally Posted by aidandj
(Post 1331409)
What turbo?
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how fast go though?
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Originally Posted by Full_Tilt_Boogie
(Post 1331413)
how fast go though?
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Very very cool build. Please tell me more about that coil setup.
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Originally Posted by thirdgen
(Post 1331418)
Very very cool build. Please tell me more about that coil setup.
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[QUOTE=hornetball;1331436]Nice craftsmanship. Looks like a great drag race setup. Any timeslips?
automatic conversion not finished yet still need a Tailshaft and i might up the boost a little if my tuner lets me when i go to get the green light to drive it hard |
Awesome setup, looking forward to seeing how it performs.
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First tim I've seen someone use a proper auto Trans behind a miata engine. Would probably be really fun to drive with the manual shift mods. My dad's corvette has a manual shift turbo 400 Trans and it's a blast to drive.
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Originally Posted by Stealth97
(Post 1331459)
First tim I've seen someone use a proper auto Trans behind a miata engine. Would probably be really fun to drive with the manual shift mods. My dad's corvette has a manual shift turbo 400 Trans and it's a blast to drive.
In the 6cyl turbo they claim 350rwkw all day so i think a 4cyl will be a little more so iam keen to turn it up next concern is diff and axels |
This is interesting! Liking the coil setup and good craftsmanship it will be a blast to drive! 300wkw is around 400whp right? That sounds crazy fast. Subd
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Originally Posted by jimmyneutron
(Post 1331555)
This is interesting! Liking the coil setup and good craftsmanship it will be a blast to drive! 300wkw is around 400whp right? That sounds crazy fast. Subd
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Which ECU is running the show?
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Originally Posted by smy0003
(Post 1331770)
Which ECU is running the show?
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Originally Posted by mx5psi
(Post 1331763)
Yeah 400hp when do you guys start seeing diff issues?
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Originally Posted by jimmyneutron
(Post 1332051)
400whp could do it I Imagine... although wheel hop will speed that process up which diff do you have?
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1 Attachment(s)
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exhaust is done
3 Attachment(s)
well a 3" exhaust shouldn't really fit with an auto we had a hard time keeping it above the frame rails as i wanted them to be the lowest point on the car https://www.miataturbo.net/attachmen...ine=1466811241
https://www.miataturbo.net/attachmen...ine=1466811241 https://www.miataturbo.net/attachmen...ine=1466811241 |
3 Attachment(s)
Some more updates added trans gauge probably adding a fuel pressure one too and a surface mount usb thought it was a cool little touchhttps://www.miataturbo.net/attachmen...ine=1467106162
https://www.miataturbo.net/attachmen...ine=1467106162 https://www.miataturbo.net/attachmen...ine=1467106162 |
Updates
Trans temp gauge and wiring all done https://cimg5.ibsrv.net/gimg/www.mia...b46db83c4.jpeg
https://cimg7.ibsrv.net/gimg/www.mia...525326199.jpeg |
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Its all a go runs and drives soo good needs better tyres
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Probably the least impressive part of your build, but the USB socket in the removable dash trim piece is a bit genius. Will be copying.
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10/10 love built auto turbo miata
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Testing
Needs a thermo fan on the auto cooler its 10 deg F warmer than id like but my auto builder laughed and said its perfect if thats the temp im getting without one it sits between 200-210 i want it solid on 200 engine is also 5 deg up on normal driving with the manual so ill probably change some stuff around bring it down a tiny bit other than that it drives amazing spins tyres into 3rd on low boost which used to be around 240kws its a heap of fun
*there cheap 205's so thats not impresive but we will see how sticky tyres go with more boost https://cimg0.ibsrv.net/gimg/www.mia...d395dcf17.jpeg |
Get some video.
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Ill try id like to sort those issues again before it goes out again
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Next jobs is trans cooler fan
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Thought i had alot more room than i did
https://cimg9.ibsrv.net/gimg/www.mia...57241c495c.jpg https://cimg1.ibsrv.net/gimg/www.mia...a1ecaae42b.jpg |
Plumbed my bov return in today try and make the car a little more subtle
https://cimg5.ibsrv.net/gimg/www.mia...4ffc464ac.jpeg https://cimg6.ibsrv.net/gimg/www.mia...1f64ff9ed.jpeg |
Went for a drive sat night and decided it was time to put my big boy pants on and try high boost its not slow you can only use half throttle in second and third breaks down im guessing cause my plug gaps at .9 are too big so i changed plugs and gapped them down to .7 im hoping it will fix the issue
Half throttle in second is faster than wot on low its a heap of fun Next job is new front rotors and brakes and clean up wiring for auto fan https://cimg1.ibsrv.net/gimg/www.mia...004b946e4.jpeg |
Very cool. Might want to clean up the oil on the VC
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Yeah my bad left the cap a little loose when i changed the oil
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.7?
I'm guessing .7mm which is roughly 0.028". I've got my plugs at .025" on stock ignition and it's fine at around 15-17psi. Any more is bad news(for me on pump gas), so i'm not sure what "high boost" is for you unless it's the 28psi referenced in the first post. I must have missed it, what is the ECU? |
25psi is high i might bump it up in the next few weeks to 27-28psi
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I'm impressed you're not getting spark blowout at that gap on stock ignition.
I was never able to go past 18 on stock '00 setup, and about 22 on Toyota cops |
I was running toyota cops im running LS coils now
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https://cimg7.ibsrv.net/gimg/www.mia...4cc15e14e.jpeg
Installing a cheap ebay mini amp and a bluetooth reciever so i have misic again i am about to order a gps based speedo output device so i can have my speedo back |
If you have ABS on the car you can do what we did here:
https://www.miataturbo.net/ecus-tuni...-sensor-85749/ |
i needs video or it gets the :hatecat: s
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No abs sensor as its a NB1 and that sounds a little hard to make happen as a gps based speedo output it just power and signal its very easy
video are coming soon ive been a little bit occupied fixing up my new daily i bought a crashed jzx100 |
Originally Posted by mx5psi
(Post 1358998)
No abs sensor as its a NB1 and that sounds a little hard to make happen as a gps based speedo output it just power and signal its very easy
video are coming soon ive been a little bit occupied fixing up my new daily i bought a crashed jzx100 Nice build sir! |
My impression of the auto is its amazing alot smoother and more driveable than expected actually easier to drive than the manual other than it wanting to blow the tyres off
the auto place is in melbourne australia they specilize in jatco's because they are in a large 6 cyl turbo car here in oz the issues we hit
Happy to speak to the guys here if you need help i see you have a 99 aisin box which i got warned away from to hard to control as its all electronic and no available upgraded aftermarket parts other than that all good hardest parts finding the jatco frame rail and flex plate |
Wouldn't a transbrake allow you to spool up the turbo at the line before launching?
Sounds like a must-have item to me. |
You want the trans brake. You won't imagine an auto drag car without one once you experience it.
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Small frame turbo has no issue building boost off the line the reason i opted out the car gets driven on the street alot and i wouldnt be able to help myself
later if i change turbo's its easily added Ill try and gets some video's up its been raining for almost a solid two weeks up here |
Good excuse for delays with the mx5
Been a bit side tracked fixing up my new daily picked it up too cheap to say no needed a bit of love its a jzx100 a toyota chaser amazing cars fairly rare here in OZ
i have some semi's for the mx5 so i might be putting them on this week and my remote bluetooth unit for the audio is due to arrive aswell this week so stuff is still happening https://cimg4.ibsrv.net/gimg/www.mia...6963aee2c.jpeg https://cimg5.ibsrv.net/gimg/www.mia...9091d281a.jpeg https://cimg7.ibsrv.net/gimg/www.mia...aa45c3291.jpeg |
https://cimg6.ibsrv.net/gimg/www.mia...6dc7adce99.jpg
https://cimg7.ibsrv.net/gimg/www.mia...fc7f6c438e.jpg Got some 225/50/15's i had fitted today they are perfect i also picked up some stock rear springs and ordered some stock height sports rear shocks so i can try out and see what hooks up best at the drags i havent made any video's cause i have let my registration lapse i will have that fixed in the next few weeks |
https://cimg5.ibsrv.net/gimg/www.mia...0a176cefa.jpeg
https://cimg6.ibsrv.net/gimg/www.mia...b5f162b5b.jpeg Was stalling it up in the driveway i can get 7psi on cold tyres in the rain before it pushes the front |
Can't wait to see how this thing launches.
:likecat: |
Whats going on with the silver Falcon in the garage?
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[QUOTE=ThunderKunt;1365306]Whats going on with the silver Falcon in the garage?[/Q
Another Toy Ford Flacon XR8 5.4 supercharged manual |
https://cimg9.ibsrv.net/gimg/www.mia...1f36d2afb.jpeg
https://cimg4.ibsrv.net/gimg/www.mia...b519b577b.jpeg Spent some time cleaning in the engine bay today i have found a cheap hardtop ill get in the next few days and a good mates just bought a new dyno we will be putting it on to see how much its lost going auto |
CLEAN :likecat:
very nice man |
We started a discussion on tires in another thread. Exactly what tire will you be using at the drag strip?
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Yokohama A048's they were a good size and cheap i got them for $200 for a set of 4
i really think the best tyre wold be micky thompson ET street R's but at $600 i was going to give theese a go first |
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